[INFO] cloning repository https://github.com/yuezato/fibers_extra
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yuezato/fibers_extra" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuezato%2Ffibers_extra", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuezato%2Ffibers_extra'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 564b18d37e6098071b1cbffc0181778f0de63667
[INFO] checking yuezato/fibers_extra against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuezato%2Ffibers_extra" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yuezato/fibers_extra on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yuezato/fibers_extra
[INFO] finished tweaking git repo https://github.com/yuezato/fibers_extra
[INFO] tweaked toml for git repo https://github.com/yuezato/fibers_extra written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/yuezato/fibers_extra already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f71cac35bdbf6418cfd4b17091239901c900d8014ccf35f54c99d1c23bbeb32
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9f71cac35bdbf6418cfd4b17091239901c900d8014ccf35f54c99d1c23bbeb32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f71cac35bdbf6418cfd4b17091239901c900d8014ccf35f54c99d1c23bbeb32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f71cac35bdbf6418cfd4b17091239901c900d8014ccf35f54c99d1c23bbeb32", kill_on_drop: false }`
[INFO] [stdout] 9f71cac35bdbf6418cfd4b17091239901c900d8014ccf35f54c99d1c23bbeb32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b24c1f880f7788aa4a04b7a75b6cb0a6dbc9179e051a16fc0512c02db24d95ec
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b24c1f880f7788aa4a04b7a75b6cb0a6dbc9179e051a16fc0512c02db24d95ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]     Checking nbchan v0.1.3
[INFO] [stderr]     Checking splay_tree v0.2.10
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]    Compiling syn v0.15.27
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking fibers v0.1.12
[INFO] [stderr]    Compiling trackable_derive v0.1.2
[INFO] [stderr]     Checking trackable v0.2.21
[INFO] [stderr]     Checking fibers_extra v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/parallel_executor.rs:412:24
[INFO] [stdout]     |
[INFO] [stdout] 412 |         generator: Box<Fn() -> TestFuture + Send + 'static>,
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> TestFuture + Send + 'static`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.39s
[INFO] running `Command { std: "docker" "inspect" "b24c1f880f7788aa4a04b7a75b6cb0a6dbc9179e051a16fc0512c02db24d95ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b24c1f880f7788aa4a04b7a75b6cb0a6dbc9179e051a16fc0512c02db24d95ec", kill_on_drop: false }`
[INFO] [stdout] b24c1f880f7788aa4a04b7a75b6cb0a6dbc9179e051a16fc0512c02db24d95ec